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Re: Hmm, motion control board is getting real smooth - that worries me!

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  • Dave Mucha
    ... Stepper smoothness is often the smoothness and regularity of the pulses. PC s have a horrible output as far as timing goes. PC s have a lot of overhead
    Message 1 of 4 , Apr 1, 2006
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      --- In Electronics_101@yahoogroups.com, "lcdpublishing"
      <lcdpublishing@...> wrote:
      >
      > Well,
      >
      > I probably have 30~40 hours into the software for the motion
      > translator board I am working on. I have probably been down 20
      > different paths along the way trying various routines and such for
      > the velocity control, accel, decel, etc.
      >
      > This morning I worked out the homing routines and then did some
      > clean up in the code to remove a bunch of testing flags and such.
      >
      > The latest test run really ran smooth - much better than anything
      > prior. The sad part is I don't know why it is running so smoothly
      > as I don't recall fixing the "problem" areas.
      >
      >

      Stepper smoothness is often the smoothness and regularity of the
      pulses. PC's have a horrible output as far as timing goes. PC's have
      a lot of overhead so the pulse streams are horrible. But, in the low
      speed realm of most of out motion control, that is not all that important.

      Dave
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